* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.flex_container_default {
  display: flex;
  display: -webkit-flex;
  /* Safari */
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: center;
}
.flex_container_default > div {
  cursor: pointer;
  flex-grow: 1;
  flex-shrink: 1;
  flex-basis: 25%;
  padding-top: 25%;
  position: relative;
  -webkit-background-size: contain;
  background-size: contain ;
  background-repeat: no-repeat;
  border-bottom: 2px solid #fff;
}
.flex_container_default > div.hasValue {
  background-color: #eeeeee;
}
.flex_container_default > div:nth-child(2) {
  border-left: 2px solid #fff;
}
.flex_container_default > div:nth-child(3) {
  border-left: 2px solid #fff;
  border-right: 2px solid #fff;
}
.flex_container_default > div .text {
  position: absolute;
  bottom: 0;
  font-size: .5rem;
  padding: 0.2rem;
  color: #fff;
  text-align: center;
  background: #f9bf3b;
  width: 100%;
}
.center {
  position: fixed !important;
  transform: translateX(-50%) translateY(-50%);
  top: 50% !important;
  left: 50% !important;
  z-index: 1;
}
body iframe video {
  width: 100%;
}
.mask {
  position: absolute;
  top: 0;
  bottom: -1000px;
  left: 0;
  right: 0;
  background: #000;
  opacity: .8;
}
